Vulnerability Description
The ocsp_check function in rlm_eap_tls.c in FreeRADIUS 2.1.11, when OCSP is enabled, does not properly parse replies from OCSP responders, which allows remote attackers to bypass authentication by using the EAP-TLS protocol with a revoked X.509 client certificate.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Freeradius | Freeradius | 2.1.11 |
Related Weaknesses (CWE)
References
- http://secunia.com/advisories/45425Vendor Advisory
- http://securityreason.com/securityalert/8325
- http://securitytracker.com/id?1025833
- http://www.openwall.com/lists/oss-security/2011/07/15/6
- http://www.openwall.com/lists/oss-security/2011/07/18/2
- http://www.openwall.com/lists/oss-security/2011/07/20/9
- http://www.securityfocus.com/archive/1/518974/100/0/threaded
- http://www.securityfocus.com/bid/48880
- https://bugzilla.redhat.com/show_bug.cgi?id=724815Patch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68782
- https://www.dfn-cert.de/informationen/Sicherheitsbulletins/dsb-2011-01.html
- http://secunia.com/advisories/45425Vendor Advisory
- http://securityreason.com/securityalert/8325
- http://securitytracker.com/id?1025833
- http://www.openwall.com/lists/oss-security/2011/07/15/6
FAQ
What is CVE-2011-2701?
CVE-2011-2701 is a vulnerability with a CVSS score of 5.8 (MEDIUM). The ocsp_check function in rlm_eap_tls.c in FreeRADIUS 2.1.11, when OCSP is enabled, does not properly parse replies from OCSP responders, which allows remote attackers to bypass authentication by usi...
How severe is CVE-2011-2701?
CVE-2011-2701 has been rated MEDIUM with a CVSS base score of 5.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-2701?
Check the references section above for vendor advisories and patch information. Affected products include: Freeradius Freeradius.